---
schema_version: "secwatch.filing_event.v1"
accession: "0000822818-24-000002"
form_type: "8-K"
ticker: "CLH"
cik: "0000822818"
company_name: "CLEAN HARBORS INC"
filed_at: "2024-02-06T23:59:59+00:00"
generated_at: "2026-06-06T08:47:22.284377+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Clean Harbors to acquire HEPACO for $400M cash; expects $20M cost synergies

## Summary
- Acquisition of HEPACO, a specialized environmental and emergency response services provider in Eastern U.S.
- HEPACO expected 2023 adj. EBITDA ~$36M on $270M revenue; post-synergy multiple of 7.1x.
- Clean Harbors expects $20M in cost synergies after first full year of operations.
- Transaction expected to close in first half of 2024, subject to regulatory approval.
- Funding through available cash and additional debt financing.

## SEC filing metadata
- accession: 0000822818-24-000002
- form_type: 8-K
- ticker: CLH
- cik: 0000822818
- company_name: CLEAN HARBORS INC
- filed_at: 2024-02-06T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/822818/000082281824000002/0000822818-24-000002-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/822818/000082281824000002/clh-20240202.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000822818-24-000002
- JSON: https://secwatch.observer/filing/0000822818-24-000002.json
- Plain text: https://secwatch.observer/filing/0000822818-24-000002.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.